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README.md

Elymas logo

Just because I'm not following the true path, doesn't mean I can't get it to work.

Build Status

Examples

A programming language...

1 dump
# 0000000000000001

... stack based programming language ...

1 2 add dump
# 0000000000000003

... with array support ...

[ 1 2 ] dump
# [
#   0000000000000001
#   0000000000000002
# ]

... did I mention array support ...

2 [ 1 2 ] add dump
[ 0 1 ] [ 1 2 ] add dump
# [
#   0000000000000003
#   0000000000000004
# ]
# [
#   0000000000000001
#   0000000000000003
# ]

... user definable functions ...

{ 2 add } /addTwo deffst
1 addTwo dump
# 0000000000000003

... variables ...

2 ==two
1 two add dump
# 0000000000000003

... function objects ...

{ { 2 add } } /returnAddTwo deffst
returnAddTwo /addTwo deffst
1 addTwo dump
# 0000000000000003

... closures ...

{ 2 ==two { two add } } /returnAddTwo deffst
returnAddTwo /addTwo deffst
1 addTwo dump
# 0000000000000003

... structured data types ...

<
  1 ==one
  2 ==two
> ==struct

struct keys dump
struct .two dump

# [
#   "one"
#   "two"
# ]
# 0000000000000002

... and more.

"Elymas" { "(..)(.*)" regex } |dump loop

# "El"
# "ym"
# "as"

Technical Pecularities

  • no runtime interpreter, executes real assembly
    • same binary both interpretes and compiles
  • freeze arbitrary program states to ELF-binaries
  • self hosted via { "/dev/stdin" include }' "interpreter" sys .freeze
    • yes, this works and generates a stand-alone interpreter/compiler
    • bootstraps from perl
      • no perl left in final binaries
  • macro support
  • names carry information about being constant or constantly having the same type each resolution
    • just-too-late opcode optimization
    • so at least one resolution is guaranteed to have taken place
    • can declare names any time before first usage
  • assembly optimizer realized as a loadable library
    • yes, it does optimize itself while running
  • regex-engine written in the language itself
  • source includes an assembler for 64bit x86

Features

  • non-braindead stack manipulation, e.g. -021 specifies "top element, then third, then second"
  • concatenative language syntax, e.g. data modifyOne modifyTwo modifyThree
  • trivial to build DSLs
  • compact code
    • more readable than APL though
    • unless you don't want it to be
  • acceptable performance (and you can always switch to assembly if necessary)
  • I actually use it for non-trivial projects

Documentation

Please see the tutorial for an introduction and further documentation.

About

A programming language I can like. Unholy and full of magic.

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